Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Fractional and Negative Indices2 marks
Write 5^-1 as a fraction.
- 2Quadratic Formula3 marks
Use the quadratic formula to solve x^2 + 4x - 7 = 0, to 2 decimal places.
- 3Repeated Percentage Change3 marks
A town's population is 28000 and grows by 3% each year. Work out the population after 5 years, to the nearest whole number.
- 4Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 9 cm^2. Work out the area of the larger.
- 5Conditional Probability3 marks
13 students study Spanish and 7 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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